Combat fatigue

combat fatigue , also called battle fatigue, or shell shock,
a neurotic disorder caused by the stress involved in war. This anxiety-related disorder is characterized by (1) hypersensitivity to stimuli such as noises, movements, and light accompanied by overactive responses that include involuntary defensive jerking or jumping (startle reactions), (2) easy irritability progressing even to acts of violence, and (3) sleep disturbances including battle dreams, nightmares, and inability to fall asleep. Although persons in combat differ widely in their susceptibility to combat fatigue, because of hereditary factors and previous training, most cases result from exposure to physical hardship, prolonged and ... (100 of 245 words)